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Continuum damage modeling of dynamic crack velocity, branching, and energy dissipation in brittle materials
This study is aimed at evaluating continuum scale predictions of dynamic crack propagation and branching in brittle materials using local damage...
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3D-printed hierarchical pillar array electrodes for high-performance semi-artificial photosynthesis
The rewiring of photosynthetic biomachineries to electrodes is a forward-looking semi-artificial route for sustainable bio-electricity and fuel...
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Ultra-low dielectric constant and high thermal stability of low-crosslinked polyimide with zinc tetraamino phthalocyanine
A series of novel tetraamino phthalocyanine zinc (TAPcZn) micro-crosslinked polyimide films were successfully synthesized by the copolymerization of...
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Bifurcation criterion and the origin of limit crack velocity in dynamic brittle fracture
By employing a variational phase field model, we investigated the dynamic brittle fracture of poly (methyl methacrylate) (PMMA) through computer...
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Variable-order fracture mechanics and its application to dynamic fracture
This study presents the formulation, the numerical solution, and the validation of a theoretical framework based on the concept of variable-order...
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Finite deformation cohesive polygonal finite elements for modeling pervasive fracture
We introduce a framework for modeling dynamic fracture problems using cohesive polygonal finite elements. Random polygonal meshes provide a robust,...
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Behaviour of Metastable and Stable Austenitic Stainless Steels Under Planar-Biaxial Load
The aim of the present study was to investigate the behaviour of a powder metallurgically produced high alloy X5CrMnNi16-7-6 metastable austenitic...
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Influence of heterogeneities on crack propagation
The influence of material heterogeneities is studied in the context of dynamic failure. We consider a pre-strained plate problem, the homogeneous...
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Dynamic crack propagation with a variational phase-field model: limiting speed, crack branching and velocity-toughening mechanisms
We address the simulation of dynamic crack propagation in brittle materials using a regularized phase-field description, which can also be...
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A 2D discrete model with a bilinear softening constitutive law applied to dynamic crack propagation problems
In the present work, we propose the incorporation of a bilinear softening constitutive law in a purely linear elastic discrete model previously...
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Unstructured polygonal meshes with adaptive refinement for the numerical simulation of dynamic cohesive fracture
This paper presents a scheme for adaptive mesh refinement on unstructured polygonal meshes to better capture crack patterns in dynamic cohesive...
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Effect of Nitrogen on Stress Corrosion Behavior of Austenitic Stainless Steels Using Electrochemical Noise Technique
Stress corrosion cracking (SCC) studies were conducted on austenitic stainless steels with two different nitrogen contents (0.07 and 0.22 wt.% N) in...
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Why do cracks branch? A peridynamic investigation of dynamic brittle fracture
In this paper we review the peridynamic model for brittle fracture and use it to investigate crack branching in brittle homogeneous and isotropic...
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Quasi-static and dynamic fracture behaviour of rock materials: phenomena and mechanisms
An experimental investigation is conducted to study the quasi-static and dynamic fracture behaviour of sedimentary, igneous and metamorphic rocks....
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Quantitative fractography of mixed-mode fracture in an R-curve material
Mixed-mode fracture surfaces of an R -curve material were quantitatively assessed using fractography. The R -curve material chosen was a mica glass...
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Damage mechanisms in the dynamic fracture of nominally brittle polymers
Linear elastic fracture mechanics provides a consistent framework to evaluate quantitatively the energy flux released to the tip of a growing crack....
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Effect of Nitrogen Content on the Tensile and Stress Corrosion Cracking Behavior of AISI Type 316LN Stainless Steels
This paper deals with the effect of nitrogen on the tensile and stress corrosion cracking (SCC) behavior of type 316LN stainless steel. Yield stress...
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Gradient Elasticity Length Scale Validation Using Static Fracture Experiments of Pmma and PVC
The use of gradient elasticity has been advocated in the past decades because of its ability to predict singularity-free stresses and strains around...
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Predicting crack propagation with peridynamics: a comparative study
The fidelity of the peridynamic theory in predicting fracture is investigated through a comparative study. Peridynamic predictions for fracture...
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Numerical investigation of dynamic crack branching under biaxial loading
Dynamic crack growth and branching of a running crack under various biaxial loading conditions in homogeneous and heterogeneous brittle or...